Agitator

Details Agitator Agitator

1986-05-30

1988-01-19

Hornsby, Harvey C.

Agitating

Agitator

366325, B01F 716

Patent

active

047201959

ABSTRACT:
An agitator of impeller shape includes an agitator hub with a plurality of radially extending arms for attachment to a drive shaft for the mixing of substances in vessels, such as substances that tend to material build-up, incrustation and/or incipient polymerization. The hub is totally closed by welding a cap over the end of the hub. At least one of the agitator arms is formed of two components, a shorter stub arm attached to the hub and longer main arm. Both components are formed of a pair of parallel, spaced apart tubes connected by a pair of webs. Each tube includes a bushing for retaining a centering bolt to attach the main portion to the stub portion. The two components are then welded together and polished to remove any gaps and sharp edges.

REFERENCES:
patent: 69248 (1867-09-01), Ranson
patent: 1400216 (1921-12-01), Hechler
patent: 2298899 (1942-10-01), Oswin
patent: 4126250 (1978-11-01), Gram
patent: 4229110 (1980-10-01), Lucke
patent: 4456382 (1984-06-01), Mahler, II
patent: 4491421 (1985-01-01), Koehl et al.
patent: 4655605 (1987-04-01), Cipelletti

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